The phrase "a buddy and a" is correct and usable in written English.
It can be used in contexts where you are referring to companionship or friendship, often in a casual or informal setting.
Example: "I went to the movies with a buddy and a friend from work."
Alternatives: "a friend and a" or "a pal and a".
Tents were set up on the floe to house experiments, and a safety protocol was established: anyone venturing out onto the ice had to travel with a buddy and a radio.
This is a made-for-television story: Dr. Horatio Nelson Jackson, the 31-year-old driver, took a buddy and a bulldog in drivers' goggles on his drive, as well as a Kodak camera.
People who are watching their wallets should always go shopping with three things: a budget, a buddy, and a stopwatch.
We developed new methods, focused around a 'PPE donning and doffing competency assessment checklist', constantly monitored by a buddy and a CCTV control system.
I had more time to live with Jibo, and came to think of him more as a buddy, and less as an assistant than my Echo.
As young fans in the 1980s and 90s, baseball banter between a buddy and me included a concept we called "Twin years".
($100. Man. My first laser printer was an NEC SilentWriter for which a buddy and I paid $6,000 in the late '80s).
At school one day, her teacher assigned her to be a buddy and guide for Linda Lin, a shy new classmate from Fujian Province in China.
"But I was in a clothing store with a buddy and they asked us if we were American servicemen," continued Sergeant Stubbs, a native of Cleveland.
When Daikeler was roundly rejected by every college he applied to, he drove up to Ithaca College in upstate New York with a buddy and talked a dean of admissions into meeting with him later that day.
"A buddy and I were having a little conversation.
